Manny Heffley is the younger brother of Rodrick and Greg who is constantly pampered and spoiled by his parents. As the youngest child of the Heffley family, Manny plays a major role in Diary of a Wimpy Kid series, having appeared in all the main series books to date.
Vote which fictional character would naturally fit in-universe with a big-named franchise! No time-travel, no interdimensional crap, no "Pooh's Adventures", they would just exist in-universe.
